distribution of normal matter
precisely determines
gravitational acceleration....."
Posted on 09/22/2016 3:59:44 PM PDT by sparklite2
Now a team led by Case Western Reserve University researchers has found a significant new relationship in spiral and irregular galaxies: the acceleration observed in rotation curves tightly correlates with the gravitational acceleration expected from the visible mass only.
"Galaxy rotation curves have traditionally been explained via an ad hoc hypothesis: that galaxies are surrounded by dark matter," said David Merritt, professor of physics and astronomy at the Rochester Institute of Technology, who was not involved in the research. "The relation discovered by McGaugh et al. is a serious, and possibly fatal, challenge to this hypothesis, since it shows that rotation curves are precisely determined by the distribution of the normal matter alone. Nothing in the standard cosmological model predicts this, and it is almost impossible to imagine how that model could be modified to explain it, without discarding the dark matter hypothesis completely."
(Excerpt) Read more at sciencedaily.com ...
Bye, bye, dark matter? One can only hope.
++++
Yes, hopefully. But seriously, wasn’t Dark Matter “invented” to explain the motion of galaxies and such?
Stop draggin stop draggin my matter around.
Dark matter is matter traveling faster than the speed of light.
You’re welcome.
No one cares about normal matter. We should all be concerned with black matter and trans matter.
Yup. And now it seems the measurements needing dark matter don’t. This is yuge.
“Dark matter is matter traveling faster than the speed of light.”
You might be on to something...
I think you are onto something. Every time I tried to type in dark matter, it started out as black matter and I had to backspace to fix it. Something’s happening here.
does black matter matter?
Only around Uranus.
the end of millions of dollars of tax grants to study ‘dark matter’?
these guys may deserve the Taxpayers’ Medal of Honour
Black Matter Lives
Indeed. But now that you've solved The Dark Matter Mystery you need to go to work getting rid of Dark Energy.
Two Astrophysical Theories were sitting at a bar.
First Theory says, “Hi, are you new here?”
Second Theory replies, “Yes, I just received my membership card.”
FT, “Do you know my father, Al? He got me my club membership ages ago!”
ST, “Al? Al who?”
FT, “Al Einstein. I’m called Cosmological Constant. What’s your name?
ST, “Dark Matter. So how is it being a member of the Association of Discarded Theories?”
FT, “Some good, some bad. It’s all Relative, after all.”
Hey, what’ sa matter you?!
Hi astronomer: stick your dark matter where the light don’t shine — cos’ of gravity.
I think what they’re saying is, the amount of ordinary matter in a galaxy, by new more accurate measurements, is enough to explain the rotation of that galaxy, without the need for dark matter.
But I don’t see in the article how this addresses the movement of galaxies relative to one another, and the expansion of the universe as a whole.
Dark Matter = modern day epicycles.
A great analogy!
Who cares?
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